Improvement in vehicle-axles



o. H. KENDALL.

Vehicle-Axle. y

No. 212,386. Patented Feb. 1.8,1879.

Figz'l.

M ja al if H o UNITED STATES PATENT FFICE.

CHARLES H. KENDALL, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO B. S. PRAY, OFSAME PLACE.

IMPROVEMENT IN VEHICLE-AXLES.

Specification forming part of Letters Patent No.' 212,386, datedFebruary 1S, 1879; application iiled January 8, 1879.

To all whom it may concern:

Be it known that I, GHARLEs H. KENDALL, of Boston, county of Suffolk,State otMassaehir setts, have invented an Improvement in Axles, ot'which the following description, in connection with the accompanyingdrawings, is a specification.

This invention relates to improvements in axles, whereby the wheels andhubs may be so applied as to yield laterally in each direction on theaxle-arms as the wheels in their rotation strike stones or roughportions of the road.

In numerous other axles two independent springs have been applied to theaxle arm and box in various ways, and both of the said springs have beennecessary to permit the wheel and hub to move in both direct-ionsWithout shock on the axle -arm. Numerous other axles and hubs have beenprovided with a single spring, to permit the hub and wheel to resistshock in but one direction.

The object of my invention is to prevent shock or blows between the axleand axle-box when the box and'wheel move laterally in each direction,and to accomplish this desirable object by means of a single spring.

My invention may be carried out practically j in several different ways,among which I shall illustrate some ofthe best ways known to me.

Figure 1 represents, in section, a hub and axle-box thereon, applied toan axle-arm provided with a single spring in accordance with myinvention 5 and Fig. 2, a modification ofthe said invention, the singledouble-actin g spring being applied at the front end of the axle andbox.

The axle-arm a, in Fig. 1, is provided with a swell or shoulder, I). Atthe rear side ofthe box c, in front of the said shoulder b, is applied ahelical spring, d, and the spring is held in contact with the shoulderby a collar, e, fixed upon the axle-arm. The diameter of the tween thesaid shoulder and collar, projects beyond the shoulder and collar farenough to meet at one end of the spring the shoulderfotthe box, or thecollar g, attached thereto or to the hub by suitable screws orscrew-threads.

The collar g must be detached from the hub or box before the hub can beremoved from the axle.

As the hub and box are moved in the direction of arrow l, thedouble-acting spring seats itseltl against thel collar c, and yields asits opposite end is acted upon by collar g,- and when moved in thedirection of arrow 2, the said spring seats itself upon the shoulder b,while its other end is acted upon by the shoulder f of the box.

It will be obvious from the foregoing description that one single springis arranged to yield in both directions to the action of the axle-boxand hub without jar or contact of solid parts.

collar, g; but the double-acting spring d, in-

stead oi" being applied or ixed to the axlearm, as in Fig. l, is shownas heilig held by the axle-box.

l claiml y The combination, with an axle-arm and two collars orprojections thereon, of a box applied to the arm, a collar located atone end of the box, and of a double-acting spring adapted to yield andprevent the box and axle from striking together when the box is moved tothe right or to the left upon the axle-arm, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES H. KENDALL.

Vitnesses:

G. W. GREGORY, N. E. WHITNEY.

